Home / 135,712.28-203,635.88-60,885.30

Finding the Fourth Proportional to 135,712.28, 203,635.88 and 60,885.30

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Solution

The fourth proportional to 135,712.28, 203,635.88 and 60,885.30 is: 91,358.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,712.28 : 203,635.88 = 60,885.30 : x
  2. Step 2: Convert to fraction form
    135,712.28/203,635.88 = 60,885.30/x
  3. Step 3: Cross multiply
    135,712.28x = 203,635.88 × 60,885.30
  4. Step 4: Simplify right side
    135,712.28x = 12,398,431,644.56
  5. Step 5: Solve for x
    x = 12,398,431,644.56/135,712.28
  6. Step 6: Final answer
    x = 91,358.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.